USN-5591-4

    Dashboard / Vulnerabilities / USN-5591-4

    USN-5591-4

    Published: 2 Sept 2022Last Modified: 14 Sept 2026

    Summary: linux-aws vulnerability

    Details: It was discovered that the virtual terminal driver in the Linux kernel did not properly handle VGA console font changes, leading to an out-of-bounds write. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

    References: https://ubuntu.com/security/notices/USN-5591-4, https://ubuntu.com/security/CVE-2021-33656

    Affected packages

    Package

    Name: linux-aws

    Purl: pkg:deb/ubuntu/linux-aws?arch=source&distro=bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.15.0-1140.151

    Affected versions

    4.15.0-1001.1
    4.15.0-1003.3
    4.15.0-1005.5
    4.15.0-1006.6
    4.15.0-1007.7
    4.15.0-1009.9
    4.15.0-1010.10
    4.15.0-1011.11
    4.15.0-1016.16
    4.15.0-1017.17
    4.15.0-1019.19
    4.15.0-1020.20
    4.15.0-1021.21
    4.15.0-1023.23
    4.15.0-1025.25
    4.15.0-1027.27
    4.15.0-1029.30
    4.15.0-1031.33
    4.15.0-1032.34
    4.15.0-1033.35
    4.15.0-1034.36
    4.15.0-1035.37
    4.15.0-1037.39
    4.15.0-1039.41
    4.15.0-1040.42
    4.15.0-1041.43
    4.15.0-1043.45
    4.15.0-1044.46
    4.15.0-1045.47
    4.15.0-1047.49
    4.15.0-1048.50
    4.15.0-1050.52
    4.15.0-1051.53
    4.15.0-1052.54
    4.15.0-1054.56
    4.15.0-1056.58
    4.15.0-1057.59
    4.15.0-1058.60
    4.15.0-1060.62
    4.15.0-1063.67
    4.15.0-1065.69
    4.15.0-1066.70
    4.15.0-1067.71
    4.15.0-1073.77
    4.15.0-1076.80
    4.15.0-1077.81
    4.15.0-1079.83
    4.15.0-1080.84
    4.15.0-1082.86
    4.15.0-1083.87
    4.15.0-1086.91
    4.15.0-1087.92
    4.15.0-1088.93
    4.15.0-1090.95
    4.15.0-1091.96
    4.15.0-1092.98
    4.15.0-1093.99
    4.15.0-1094.101
    4.15.0-1095.102
    4.15.0-1096.103
    4.15.0-1097.104
    4.15.0-1098.105
    4.15.0-1099.106
    4.15.0-1101.108
    4.15.0-1102.109
    4.15.0-1103.110
    4.15.0-1106.113
    4.15.0-1109.116
    4.15.0-1110.117
    4.15.0-1111.118
    4.15.0-1112.119
    4.15.0-1114.121
    4.15.0-1115.122
    4.15.0-1116.123
    4.15.0-1118.125
    4.15.0-1119.127
    4.15.0-1121.129
    4.15.0-1123.132
    4.15.0-1124.133
    4.15.0-1126.135
    4.15.0-1127.136
    4.15.0-1128.137
    4.15.0-1130.139
    4.15.0-1133.143
    4.15.0-1136.147
    4.15.0-1137.148
    4.15.0-1139.150

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    USN-5591-4 | CVE-DB